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Priority claimed from GB17082/74Aexternal-prioritypatent/GB1508993A/en
Priority claimed from AT302577Aexternal-prioritypatent/AT349556B/de
Application filed by Mars LtdfiledCriticalMars Ltd
Publication of ATA306477ApublicationCriticalpatent/ATA306477A/de
Application grantedgrantedCritical
Publication of AT356495BpublicationCriticalpatent/AT356495B/de